Establish MPLS Transport Label Distribution via Segment-Routing

1. Enable Segment-Routing extensions to IS-IS, leveraging MPLS data plane encapsulation.

   • The Segment Routing Global Block (SRGB) label range should be 900,000–965,535 on all Service Provider nodes.

2. Configure each node with a globally unique Node SID equal to 900,000+NodeID.

   • For example, EOS1 should have a Node SID of 900,001.

3. Review IS-IS adjacency SIDs on EOS2 and EOS5.

   Question

   Is there overlap? If so, will this present an issue? Why or Why not?

4. Validate that all Service Provider nodes have a globally unique Node SID.

5. To protect against black holes, and reduce convergence time:

   • Enable the equivalent of IGP Sync and Session-Protection within the Segment-Routing domain.

6. Once this task has been completed, all Service Provider nodes should have an LSP established for reachability between loopbacks:

   ping mpls segment-routing ip x.x.x.x/32 source y.y.y.y
   

   traceroute mpls segment-routing ip x.x.x.x/32 source y.y.y.y
   

Success

Lab Complete!